Question: Which chemical compound has the highest standard enthalpy of formation?
Paraphrase: Which chemical compound has the highest enthalpy formation?
SPARQL (Wikidata): select ?ent where { ?ent wdt:P31 wd:Q11173 . ?ent wdt:P3078 ?obj } ORDER BY DESC(?obj)LIMIT 5 
Answer: benzene, toluene, benzene, toluene, 1-diazidocarbamoyl-5-azidotetrazole